Pump mechanism



oct. 30,1923. 1,472,338.

, 4 v P. OSTENBERG IVUMP MECHANISM Filed Oct. 12 1920 FIGURE 1 BY ATTORNEY Patented Oct. 30, 1923.

roN'rUs osTENBERG, or

SAN JOSE, CALIFORNIA.

- f i l l PUMP nncinnism.

Application led October 12,1920. Serial N0. 416,428.

To all whom t may concern:

. Be it known that I, PoNTUs OSTENBERG, a citizen of the United States, and a resident of San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvementsin Pump Mechanisms, of which the following is a specification.

-inventionrelates particularly to the driving mechanism of pumps.

It is customary to build up the driving .shaft for. a deep well centrifugal pump by joining several. engths of shaftin together by means of threaded couplings. he shaft ends and couplings are threaded in suc'h a manner that in operating the pump in the' night direction the tendency is to screw the parts u more tightly. If, however, the ,belt is ina vertently twisted in the wrong direction when being placed upon the pulley drivi the shaft, and the shaft is therefore veli in the reverse direction to that for which it was designed, any one of these couplings may be unscrewed. The accidental unscrewing of a cougling in this manner, especially if it shoul occur several hundred feet below the surface of the ground, as it sometimes does, occasions considerable expense of time and money in rei. of Figure 1.

joinintg the several parts as well as loss of use o the pump during the liftin of the pump, the )oining of the lparts an the replacing of the pump in t ek well.

It is the object of my invention to provide an automatically operating means whereb the pump shaft may be revolved freely in the right direction but effectively held a ainst rotation in the reverse direction. t is another object of my invention to provide a new and novel means of cirvoulating oil through the ball bearings vin the pump head.

In the drawing l Figure 1 Yis an illustration of a ump head embodying my invention, one-ha f bein in elevation and one-half in section. 2 is a sectional view on line v2 2 Figure 3 is an illustration of another embodiment of my invention.

Figure 4 isa'l plan view of another embodiment of my invention. lFigure 5 is a side elevation of the movvable member shown in Fi lre 4. Referring more particu arly to the drawing, 1 is the body of the pum head, 2 the discharge casing connected t ereto, 3 the discharge pipe from said head, 4 the ball bearings in the head covered by` cap 5, 6 the driving sliaftin bearing 4, and 7 the driving pulley for shaft 6. Y K

The shaft 6 is yShown with a coupling at 8 into which opposing ends of shaft sections are screwed as at 9 and 10. At 11 is shown a flange extending inwardly from head 1 just below bearings 4 as shown. At 12 is shown an oil receptacle mounted on shaft 6 to re- .volve therewith and having a top flange 13 extending inwardly a distance as shown. A tube is shown at 14 extending from a point adjacent the bottom and outer wall of receptacle 12 upwardl and over flange 13 to a point in the hea 1 to which it is secured.v A conduit 15 is formed in head 1 extending from tube 14 to a point 16 where -1t discharges into ball bearings 4.

In the outer surface of head 1 are formed several stops as 17 and a dog 18 is shown mounted upon a pin 19 set in lugs 2O formed on pulley 7, the dog 18 being positioned to normally engage a stop 17 as shown when the pulley is at rest. This engagement is effected by a spring 21 on the ouir eggs of dog 18 and engaging the said pu ey When the shaft 6 is revolved the oil in receptacle 12 is thrown outwardly by centrifugal force and forced to travel upwardly through tube 14 and conduit 15, and is discharged at 16 on to the ball bearings 4. When the oil works down to flange 11 it passes over the 'edge thereof into receptacle 12, to be a ain thrown outwardly and forced into tu e 14.

When pulley 7 starts to revolve dog 18 travels over the surface of head 1, but as the speed of the pulley increases, the centrifugal force generated acts upon dog 18 and throws it outwardly to an inoperative position as 22 against the tension of spring 21. Whenthe pulley 7 again slows down to a stop the do 18 assumes the normal sition shown. ith this device in position it is impossible to reverse the direction lof movement of shaft 6 for more than a quarter of a turn as the dog will automatically engage a stop 17 and prevent its further revolution in that direction, and a quarter of a turn in the reverse direction would of course be insufficient to unscrew the parts 8-9-10. Of course one or any number of stops may be provided to secure the results desired.

In the embodiment shown in Figure 3 the action is similar to that described but the dog is formed with an inwardly extending arm 23 and an upwardly extend` ing weighted arm 23a. The centrifugal force act-ing upon arm 23a throws it outwardly and removes arm 23 to an inoperative position.

In Figures 4 and 5 I show an outwardly extending flange 24 on head 1, the stop 17 being arranged thereon. On pin 25 on pulley 7 is pivotally mounted a dog 26 formed of thin flat metal normally inclined downwardly as shown in Figure 5. On the under side of dog 26 is a rib 27 normally engaginglange 24 and a stop 17 thereby preventing the reverse movement of pulley 7 and shaft 6. The speed of the rotating pulley 7, however, imparts a certain buoyancy to dog 26, the air engaging its under side and causing it to assume a substantially horizontal position as shown at 28. As the air pressure is reduced by the stopping of pulley 7 the dog automatically drops back to a normal position in operative relation to stop 17.

It is to be understood of course, that this invention may` be adapted for use in connection with any pulley and shaft arrangement where the reverse rotation of the shaft must b e avoided, and that changes in form, construction and method of operation may be made within the scope of the appended claim.

It is also to be understood that changes in form and construction of the oiling system described may be made within the scope of the appended claim.

I claim ln combination, a pump head, a shaft revolubly" mounted therein, a pulley on said shaft, a stop on said head, and a dog pivotally mounted on said pulley and carrying roNTus osTENBERG.

an inwardly extending arm normally posi- I 

